2. Whether a single content is abnormal or multiple contents are abnormal, if a single content is abnormal, it is a video resource problem;
3. Try to restart the phone;
4. Whether the application and system versions are up to date; If not, it is recommended to upgrade;
5. The service of the applicant may be temporarily out of order, so it is recommended to try again after a while;
5. Uninstall and reinstall the application.
6. Restore the backup data to the factory settings.
If the above investigation still cannot be solved, please bring the purchase invoice, warranty card and mobile phone to the nearest OPPO customer service center for testing and handling by professional engineers.